Well, here's the song:

I HEARD THE BELLS ON CHRISTMAS DAY

I heard the bells on Christmas day
Their old familiar carols play,
And wild and sweet
The words repeat
Of peace on earth, good will to men.

I thought how, as the day had come,
The belfries of all Christendom
Had rolled along
The unbroken song
Of peace on earth, good will to men.

And in despair I bowed my head;
"There is no peace on earth," I said,
"For hate is strong,
And mocks the song
Of peace on earth, good will to men.

Then pealed the bells more loud and deep:
"God is not dead, nor doth he sleep:
The wrong shall fail,
The right prevail,
With peace on earth, good will to men."

Till ringing, singing on its way,
The world revolved from night to day,
A voice, a chime,
A chant sublime,
Of peace on earth, good will to men.

Words attributed to Henry Wadsworth Longfellow, 1863
Music by Henry Bishop

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....and here's the poem, "Christmas Bells," 1863 (from www.everypoet.com)


CHRISTMAS BELLS
(Henry Wadsworth Longfellow, 1863)

I heard the bells on Christmas Day
Their old, familiar carols play,
    And wild and sweet
    The words repeat
Of peace on earth, good-will to men!

And thought how, as the day had come,
The belfries of all Christendom
    Had rolled along
    The unbroken song
Of peace on earth, good-will to men!

Till, ringing, singing on its way,
The world revolved from night to day,
    A voice, a chime,
    A chant sublime
Of peace on earth, good-will to men!

Then from each black, accursed mouth
The cannon thundered in the South,
    And with the sound
    The carols drowned
Of peace on earth, good-will to men!

It was as if an earthquake rent
The hearth-stones of a continent,
    And made forlorn
    The households born
Of peace on earth, good-will to men!

And in despair I bowed my head;
"There is no peace on earth," I said:
    "For hate is strong,
    And mocks the song
Of peace on earth, good-will to men!"

Then pealed the bells more loud and deep:
"God is not dead; nor doth he sleep!
    The Wrong shall fail,
    The Right prevail,
With peace on earth, good-will to men!"